<?php
/**
 * Created by PhpStorm.
 * User: 小灰灰
 * Date: 2021-05-31
 * Time: 下午6:48:04
 * Info:
 */

namespace app\common\model;

use app\common\constants\MenuConstant;

class SystemMenu extends TimeModel
{

    public function getPidMenuList()
    {
        $list        = $this->field('id,pid,title')->where([
            ['pid', '<>', MenuConstant::HOME_PID],
            ['status', '=', 1],
        ])->select()->toArray();
        $pidMenuList = $this->buildPidMenu(0, $list);
        $pidMenuList = array_merge([
            [
                'id'    => 0,
                'pid'   => 0,
                'title' => '顶级菜单',
            ]
        ], $pidMenuList);

        return $pidMenuList;
    }

    protected function buildPidMenu($pid, $list, $level = 0)
    {
        $newList = [];
        foreach ($list as $vo) {
            if ($vo['pid'] == $pid) {
                $level++;
                foreach ($newList as $v) {
                    if ($vo['pid'] == $v['pid'] && isset($v['level'])) {
                        $level = $v['level'];
                        break;
                    }
                }
                $vo['level'] = $level;
                if ($level > 1) {
                    $repeatString = "&nbsp;&nbsp;";
                    $markString   = str_repeat("{$repeatString}├{$repeatString}", $level - 1);
                    $vo['title']  = $markString.$vo['title'];
                }
                $newList[] = $vo;
                $childList = $this->buildPidMenu($vo['id'], $list, $level);
                ! empty($childList) && $newList = array_merge($newList, $childList);
            }

        }

        return $newList;
    }

}